JP2017221183A - Electrode device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fish culture system enabled to reduce a necessity to an access by a vessel to a farm by automating a manual work for cultivation.SOLUTION: An electrode device 70 comprises: electrode means 10, to which electric pulses are applied; and fixing means 74 for fixing the electrode means 10 at a desired installation position in water. The electrode device establishes an electric field for inducing fish in water when the electric pulses are applied.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an electrode device.

  Fish farming, especially so-called split-type farming, which is widely practiced at present, establishes a farm by providing closed sections surrounded by nets, that is, ginger, in water such as the sea. It is carried out through a process of raising the fish inside, capturing it after it has grown to a stage sufficient for shipping, and shipping it.

  Often during this entire fish farming process, a person needs to go to a ginger through a boat and work on the spot. For example, when feeding a fish, when maintaining a net, when first putting a fish into a ginger, or when finally catching a fish.

  Hereinafter, the fish that is to be cultured is referred to as a cultured fish.

  In order to increase the work efficiency of fish farming in such a farm, for example, among the above-described work, a net for suppressing deposits is known for the purpose of improving the maintainability of the net (Patent Document 1). .

  In addition, it is also known that an electric fence is installed in the sea in order to eliminate the maintenance of the net itself (Patent Document 2).

JP-A-6-153744 JP-A-5-123079

In this way, taking various measures for nets used for aquaculture is effective for other work, even if a certain effect is seen in improving the maintainability of the net. It does not play.
Moreover, even if an electric fence is installed in the water, from the viewpoint of fish movement, there is no effect more than the effect of limiting the range of free movement of fish brought by the net.

  On the other hand, for each type of fish, there is a breeding environment suitable for various natural conditions such as water temperature and water quality. When installing a fish farm, especially a ginger for breeding farmed fish in it. One of the most important factors for increasing the productivity of farmed fish in the farm is to select a place with natural conditions according to the type of farmed fish.

  However, when actually setting up a farm, it is not possible to select a farm based only on natural conditions in consideration of the condition that people must work on the spot as described above. The additional condition that it can be accessed by a ship must be added. Therefore, in the past, it was inevitable to select a place with more favorable natural conditions within the limit of good access to some extent.

  In addition, when people work on a ginger, such as feeding a cultured fish with food or capturing it for shipping, it is not possible to get into a ginger on a ship. Going with itself involved considerable danger and was hard work. Therefore, working on a ship to reach a ginger itself has been a cause of difficulty in improving productivity.

  In addition, even if there is work that you want to do according to the timing of the growing state of the fish, water temperature, time, etc., if you can not get the ship out due to the weather, you may miss the optimal timing of the work there were. If the timing is missed in this way, it has an unfavorable effect on the growth of the fish and has been a factor that hinders productivity improvement.

Accordingly, the problem to be solved by the present invention is to provide a device or electrode device, method, and system for guiding a fish / fish school in a desired direction while avoiding direct contact with fish as much as possible through a net or the like. Is to provide.
Another object of the present invention is to provide a device, an electrode device, a method, and a system that can reduce the necessity of ship access to the farm by automating the manual work for fish farming.

(Electrode device)
The electrode device according to the present invention has electrode means to which an electric pulse is applied, and fixing means for fixing the electrode means at a desired installation position in water, and when the electric pulse is applied, An electric field is generated in the water to induce

  According to such an embodiment, an electrical pulse is applied to the electrode means to form an electric field in the water, through which an electrical stimulus is applied to the fish so that the fish escapes from the electrical stimulus. By prompting, the fish can be guided in a desired direction. In this way, by inducing fish by electrical stimulation, it is possible to dramatically reduce the frequency of humans going to the place of the fish on the ship and working, so the labor and cost of manual work for fish farming Can be greatly reduced, and as a result, the productivity of aquaculture can be significantly improved.

  In addition, since the fish is induced by the electric field formed by the electric pulse, when the fish is induced, the fish is not directly touched like a net, and the cultured fish can be prevented from being damaged. Therefore, the quality of the cultured fish to be shipped can be improved, and it can contribute to the improvement of productivity from the aspect of quality.

  Furthermore, the electric field formed by the electric pulse is not a mesh-like obstacle, unlike a fence with a conventional net, so that regardless of the size of the fish, the fish that tries to pass through the region where the electric field is formed is used. Can block movement and guide fish.

  The electrode means includes a linear portion having a surface that is at least partially conductive and corrosion resistant.

  According to such an embodiment, the electrode means is able to generate an electric field in the water by an electric pulse applied to the electrode means by the conductive surface, and is installed in the water by the corrosion-resistant surface. It is possible to prevent the electrode means from being deteriorated.

  Further, since the electrode means has a linear portion, the structure of the electrode means can be simplified, the shape is simplified and the maintainability is improved as compared with the conventional net-like structure of the net.

  The linear portion includes a flexible pipe or wire.

  By having such a configuration, since the pipe or the wire has a relatively thin shape, the linear portion is unlikely to receive the force of water flow in water. Moreover, by having flexibility, the force of a water flow can be received suitably. Therefore, it can be prevented that the electrode means is deformed and damaged in water or the installation position of the electrode means is shifted.

  Moreover, since it has flexibility, when conveying an electrode means before and after installing an electrode means in water, it can handle in the state which wound the wire, and handling of an electrode means becomes easy.

  A braided wire pipe or wire configured by braiding a plurality of strands including conductive strands into such a pipe or wire can be suitably used. According to such a braided wire pipe or wire, water can pass between the braided wires, so that the force of the water flow can be released as appropriate and the braided wires are used. By changing the material, thickness, combination thereof, and / or knitting method, the flexibility of the pipe or wire can be widely adjusted.

  The linear part having a conductive and corrosion-resistant surface is, for example, a straight, solid conductor rod or hollow conductor pipe, a flexible conductor wire, It may be supported by being pulled.

  Further, it is sufficient that at least a part of the surface is conductive and corrosion-resistant, and the inside and other parts of the surface may be nonconductors such as plastic, concrete, earth and sand.

  The linear portion is supported on the upper side by supporting means and on the lower side by fixing means.

  By having such a configuration, the linear portion can be stretched between the fixing means provided in the lower portion of the linear portion and the float provided in the upper portion. That is, the linear portion is supported between the fixing means and the float. The flexible linear portion is linearly held by the tension applied to the linear portion between the fixing means and the float. Therefore, the linear portion serving as the electrode means is held in a straight line, so that when the plurality of electrode means are arranged side by side, the distance between the adjacent electrode means is kept within a certain range, and accordingly, An electric field having a constant strength can be formed over the longitudinal direction of the electrode means.

  The fixing means includes a float.

  By having such a configuration, the linear portion is supported in a tensioned state between the float and the fixing means by the buoyancy applied to the float. The linear portion is linearly held by the tension applied to the linear portion between the fixing means and the float.

  Also, by constructing this float so that it can be seen from the surface of the water, it can be used as a mark for recognizing that the electrode device is installed on the ship navigating the surface of the water. , Can ensure both the safety of farmed fish. Furthermore, you may have light-emitting bodies, such as a light, like a so-called lamp buoy.

  The fixing means has a weight capable of fixing the electrode means in water.

  By having such a configuration, the electrode means can be easily installed at a desired position in the water simply by submerging the fixing means in the water.

  The fixing means has a fixing portion fixed to the water bottom.

  By having such a configuration, the fixing means is firmly fixed to the bottom of the water via the fixing portion, and as a result, the electrode means can be more firmly fixed in the water. Therefore, even when a large force is applied to the electrode means, such as when the water flow is intense, the electrode means does not shift.

  For example, the fixing portion may have a structure in which a fixing means is connected and fixed to a base fixed to the ground of the bottom of the water by pile driving or the like.

  The electrode device includes a connecting portion that removably connects the electrode means and the fixing means.

  According to such embodiment, since an electrode means and a fixing means can be connected so that attachment or detachment is possible, when maintaining an electrode means, it can remove from a fixing means. For example, when the electrode means is corroded or the deposit accumulated on the electrode means reaches a certain level (amount) and the desired electric field cannot be obtained, the electrode means is removed from the fixing means, The electrode means can be pulled up from the water for maintenance. Further, the electrode device can be used again by connecting the new electrode means to the fixing means from which the electrode means has been removed.

  Moreover, since the electrode means is configured so as to form an electric field in water, the electrode means may inevitably be affected by electric corrosion or the like. Therefore, more frequent maintenance is required as compared with the fixing means, and the life of the fixing means must be relatively short. Then, if replacement / maintenance is performed while the electrode means and the fixing means are connected, the fixing means is pulled out of the water in a short cycle that is not necessary for the fixing means, and in some cases, the electrode means and the electrode means are replaced. The efficiency is reduced. If the electrode means and the fixing means are detachably connected, the electrode means can be lifted out of the water as needed while leaving the fixing means in the water, and maintenance and / or replacement can be achieved. Good.

  Further, the fixing means is configured to be able to fix the electrode means in water against the buoyancy applied to the fixing means itself and the electrode means. Therefore, in order to pull it up, a great deal of labor is required. . On the other hand, since the electrode means can be pulled up relatively easily, if the electrode means can be pulled up separately from the fixing means, the labor for lifting itself can be reduced.

  Further, if the connecting portion is configured so that the fixing means and the electrode means can be connected in water, the electrode means and the fixing means previously installed in water can be connected in water. That is, for example, when replacing the electrode means used in water, simply remove the electrode means leaving the fixing means in place, and attach a new electrode means to the remaining fixing means. The electrode means can be installed at the position.

  The electrode device is provided with a battery module.

  By having such a structure, the battery provided in the electrode device can cover the power necessary for the operation of the electrode device. Therefore, it is possible to save labor for laying electric wires for supplying power to the plurality of electrode devices installed in water.

  For example, this battery module can be provided with a solar battery cell and a storage battery. Electric power generated in the daytime using the solar battery cell is stored in the storage battery, and is constantly required for the electrode device via the battery module. Can cover electricity.

  Further, the battery module may include a tidal power generator or a wind power generator. Furthermore, if a plurality of different types of power generation means are provided, for example, power can be stably supplied without a storage battery.

  One battery module may be provided for several electrode devices. According to such a configuration, since it is only necessary to connect a small number of electrode devices installed in the vicinity to one battery module with electric wires, one for each electrode device constituting the aquaculture system. The number of battery modules can be saved as compared to connecting battery modules, and since it is not necessary to lay wires over a wide area so as to cover all electrode devices, laying of wires is facilitated.

  The electrode device is provided with a communication module that communicates with a control unit that controls the electric pulse.

  By having such a configuration, when a control unit is provided that controls the electrical pulse applied to each electrode means of the plurality of electrode devices, via the communication module, Control signals can be exchanged with each electrode device, and electric pulses applied to the plurality of electrode devices can be appropriately adjusted and controlled so as to guide the cultured fish in a desired direction.

  Further, by making this communication module a wireless communication module that performs communication via radio, it is possible to save labor for laying wires for communication of control signals between the control unit and the electrode device.

  A plurality of the electrode devices are arranged in the water with a space between each other, and the fish is induced between the adjacent electrode devices via an electric field formed in the water by an electric pulse applied to the electrode means. .

  By having such a configuration, an electric pulse can be applied between adjacent electrode means, and a fish can be induced by an electric field generated between these two electrode means. That is, an electrical stimulus is given to a fish that approaches an electrode means to which an electric pulse is applied and tries to pass between both electrodes where an electric field is generated, and the fish can pass between both electrode means. Disappear.

  The plurality of electrode devices are arranged so that a section for confining fish is formed by an electric field formed in water by the electric pulse.

  By having such a configuration, for example, a ginger region for breeding fish, an entrance that allows fish to enter and exit from the ginger region, and a guide path that communicates with the ginger region through the entrance are formed. As such, the electrode device can be arranged. Therefore, at the boundary of the ginger region, an electrical barrier can be formed against fish and other living organisms, and the fish in the ginger region, for example, cultured fish, can be guided to be confined in the ginger region. In addition, it is possible to prevent external enemies such as unintended fish and other creatures from entering the ginger area from outside the ginger area. At that time, unlike the sacrifice provided by the conventional net, it becomes possible to prevent the invasion of an external enemy regardless of the size of the external enemy.

  In addition, by forming an entrance / exit in the ginger region, fish can enter / exit from the ginger region to the taxiway and / or from the guideway to the ginger region via the entrance / exit.

  In addition, since a taxiway communicating with the ginger region is formed, a passage leading to the ginger region is formed, and by guiding the fish in this taxiway, the fish is allowed to enter the ginger region from the taxiway via the entrance / exit. Or from the ginger region through the entrance and exit and can be guided to a desired location through the guide path.

(Fish farming system)
A fish farming system using an electrode device according to the present invention comprises a plurality of electrode means installed in water, and a control means for controlling an electric pulse applied to the electrode means. A fish is induced by an electric field formed by the electric pulse in the formed region.

  According to such an embodiment, an electric pulse controlled by the control means can be applied to the electrode means, whereby an electric field can be formed in the water. By prompting to escape from this electrical stimulation, the fish can be guided in a desired direction. In this way, by guiding the fish by electrical stimulation controlled by the control means, the frequency of the person going to the place of the fish on the ship and performing the work can be significantly reduced. Can greatly reduce the labor and cost of the aquaculture, and as a result, the productivity of aquaculture can be significantly improved.

  In addition, since the fish is induced by the electric field formed by the electric pulse, when the fish is induced, the fish is not directly touched like a net, and the cultured fish can be prevented from being damaged. Therefore, the quality of the cultured fish to be shipped can be improved, and it can contribute to the improvement of productivity from the aspect of quality.

  Furthermore, the electric field formed by the electric pulse is not a mesh-like obstacle, unlike a fence with a conventional net, so that regardless of the size of the fish, the fish that tries to pass through the region where the electric field is formed is used. Can block movement and guide fish.

  The electrode means includes a ginger region for breeding fish by an electric field formed by the electric pulse, an entrance / exit for allowing fish to enter and exit from the ginger region, and an induction communicating with the ginger region via the entrance / exit It arrange | positions so that a path may be formed.

  According to such an embodiment, since the ginger region is formed by the electric field generated by the electric pulse, it is possible to form an electrical barrier against living organisms such as fish at the boundary of the ginger region. Can guide the fish in the ginger area, for example farmed fish, to be trapped in the ginger area, and prevent unintended enemies such as unintentional fish and other organisms from outside the ginger area from entering the ginger area Can do. At that time, unlike the sacrifice provided by the conventional net, it becomes possible to prevent the invasion of an external enemy regardless of the size of the external enemy.

  In addition, by forming an entrance / exit in the ginger region, fish can enter / exit from the ginger region to the taxiway and / or from the guideway to the ginger region via the entrance / exit.

  In addition, since a taxiway communicating with the ginger region is formed, a passage leading to the ginger region is formed, and by guiding the fish in this taxiway, the fish is allowed to enter the ginger region from the taxiway via the entrance / exit. Or from the ginger region through the entrance and exit and can be guided to a desired location through the guide path.

  The control means controls the electric pulse applied to the electrode means arranged at the position of the entrance / exit among the plurality of electrode means to switch the opening / closing of the entrance / exit.

  According to such an embodiment, since the doorway is opened and closed by the control means, when it is desired to bring the cultured fish back and forth between the guideway and the ginger region, the doorway is opened and the cultured fish does not want to go in and out. In some cases, the doorway can be closed. Therefore, the entrance / exit can be easily opened and closed, and it is not necessary for a person to go to the sacrifice area.

  The electric pulse is applied between one electrode means of the plurality of electrode means and another adjacent electrode means, and generates an electric field between both electrode means.

  According to such an embodiment, an electric pulse can be applied between the electrode means adjacent to each other, and the fish can be induced by the electric field generated between the two electrode means adjacent to each other. That is, an electrical stimulus is given to a fish that approaches an electrode means to which an electric pulse is applied and tries to pass between both electrodes where an electric field is generated, and the fish can pass between both electrode means. Disappear.

  The average voltage or average current of the electric pulse is set by the control means so as to decrease toward the direction of inducing fish.

  According to such an embodiment, since the average voltage or average current of the electric pulses applied to the electrode means decreases toward the direction of inducing the fish, the electrical stimulation applied to the fish also induces the fish. It becomes weaker in the direction to try. Therefore, fish that are moving away from the direction to be guided or fish that are further away from the direction to be guided will receive a stronger electrical stimulus, and will naturally move away when the electrical stimulus is weaker. It moves in the direction to be guided, that is, the target direction.

  The electric pulse is periodically applied, and the average voltage or average current is set by adjusting at least one of a peak value, a duty ratio, and a frequency of the electric pulse.

  According to such an embodiment, the average voltage or average current of the electric pulse can be easily and appropriately adjusted by the peak value, duty ratio, frequency, etc. of the electric pulse.

  Moreover, the target fish can be induced | guided | derived more suitably even if it is the same average voltage or average current by adjusting the above-mentioned parameter suitably according to the kind, size, and ecology of the fish to be induced | guided | derived.

  In addition, by adjusting various parameters in this way and controlling the resulting average voltage or average current, even with the same average voltage or average current, the electrode means can be further damaged, for example, as described below. Parameters that are unlikely to occur can be selected as appropriate.

  The electric pulse is periodically applied with the polarity alternately changed between both electrode means.

  According to such an embodiment, the electrical pulses are applied with the polarity reversed alternately between the adjacent electrode means, so that by applying electricity to the electrode means in water, particularly in seawater, Damage caused to the hitting electrode means can be reduced. Neutralize the damage caused by the outflow of ions from the electrode means, corrosion due to oxidation, precipitation of components contained in the water, etc. caused by applying electricity to the electrode means in water by alternating electrical pulses. Or averaged so that damage is not concentrated on a specific electrode means between the electrode means. Therefore, the maintainability of the electrode means is improved.

  The electrode means is arranged so that the guide path extends from the entrance / exit of the ginger region to the port, and the control means is configured to feed fish from the port to the ginger region in the guide path. The electrical pulses are controlled to guide and / or guide fish from the ginger region towards the harbor.

  According to such an embodiment, since the taxiway is provided so as to connect between the harbor and the ginger region, a fish, for example, a cultured fish in the state of a young fish and / or a fish serving as a food for the cultured fish, It can be discharged from the port into the taxiway, guided through the taxiway toward the ginger region, and guided into the ginger. Therefore, unlike the conventional case, it is not necessary for a person to go to a ginger and put young fish and / or fish to be fed into the ginger. Therefore, work becomes efficient and the productivity of aquaculture can be improved.

  In addition, when the cultured fish in the ginger has grown to a state suitable for shipping, it can be led from the ginger to the port through the taxiway or to an area suitable for catching the cultured fish on the way. Even if you do not go to the ginger on board, you can capture farmed fish at the port or in a convenient area along the way, improving work efficiency.

(How to guide fish)
In the fish guidance method using the electrode device according to the present invention, a plurality of electrode means are disposed in water apart from each other, an electric pulse is applied to the electrode means, and the electric pulse of the plurality of electrode means An electric field is generated between the applied electrode means and the adjacent electrode means, and the fish is induced by the electric field.

  According to such an embodiment, by applying an electrical pulse to the electrode means, an electric field can be formed in the water, through which an electrical stimulus is applied to the fish and the fish escapes from the electrical stimulus. The fish can be guided in a desired direction by urging to do so.

That is, an electrical stimulus is given to a fish that approaches an electrode means to which an electric pulse is applied by an electric field generated between both adjacent electrode means and tries to pass between both electrodes where the electric field is generated, Fish will not be able to pass between both electrode means.
In this way, by guiding the fish by electrical stimulation controlled by the control means, it is possible to dramatically reduce the frequency of humans going to the place of the fish on the ship and working, so it is necessary to manually operate the fish. Can greatly reduce the labor and cost of the aquaculture, and as a result, the productivity of aquaculture can be significantly improved.

  In addition, since the fish is induced by the electric field formed by the electric pulse, when the fish is induced, the fish is not directly touched like a net, and the cultured fish can be prevented from being damaged. Therefore, the quality of the cultured fish to be shipped can be improved, and it can contribute to the improvement of productivity from the aspect of quality.

  Furthermore, the electric field formed by the electric pulse is not a mesh-like obstacle, unlike a fence with a conventional net, so that regardless of the size of the fish, the fish that tries to pass through the region where the electric field is formed is used. Can block movement and guide fish.

  The average voltage or average current of the electric pulse is lowered toward the direction in which the fish is to be induced.

  According to such an embodiment, since the average voltage or average current of the electric pulses applied to the electrode means decreases toward the direction of inducing the fish, the electrical stimulation applied to the fish also induces the fish. It becomes weaker in the direction to try. Therefore, fish that are moving away from the direction to be guided or fish that are further away from the direction to be guided will receive a stronger electrical stimulus, and will naturally move away when the electrical stimulus is weaker. It moves in the direction to be guided, that is, the target direction. That is, the fish can be guided in a desired direction by utilizing the fact that the fish tries to move to a place where electrical stimulation is weaker.

  The electric pulse is applied to the electrode means so that the polarity of the electric pulse is sequentially switched between adjacent electrode means of the plurality of electrode means.

  According to such an embodiment, the electrical pulses are applied with the polarity reversed alternately between the adjacent electrode means, so that by applying electricity to the electrode means in water, particularly in seawater, Damage caused to the hitting electrode means can be reduced. Damage caused by the outflow of ions from the electrode means and precipitation of components contained in the water caused by applying electricity to the electrode means in water can be neutralized by an alternately applied electric pulse, or the electrode It can be averaged so that damage is not concentrated on a specific electrode means between means. Therefore, the maintainability of the electrode means is improved.

  The average voltage or average current of the electric pulse is set by adjusting at least one of the peak value, duty ratio, and frequency of the electric pulse.

  According to such an embodiment, the average voltage or current of the electric pulse can be easily and appropriately adjusted by the peak value, duty ratio, frequency, etc. of the electric pulse.

  The degree of electrical stimulation that the fish feels due to the electrical pulse, or the effect that the fish receives, i.e. the sensitivity / sensitivity to the electrical stimulation, depends on the type, size and / or various organs of the fish, e.g. gills, fins, floats, etc. Depending on. By adjusting the average voltage or average current of the electric pulse according to the peak value, duty ratio, frequency, etc. of the electric pulse, the sensitivity of the fish type, size and / or various organs even with the same average voltage or average current The degree of stimulation received by the fish can be appropriately controlled according to the unique personality such as.

  By appropriately adjusting the above parameters according to the type, size, and ecology of the fish to be induced, the target fish can be more suitably induced even with the same average voltage or average current.

  In addition, by adjusting various parameters in this way and controlling the resulting average voltage or average current, parameters that are less likely to cause damage to the electrode means are selected as appropriate even with the same average voltage or average current. can do.

  The electrode means communicates with the ginger region through the ginger region for raising fish, an entrance / exit that allows fish to enter and exit from the ginger region, by the electric field formed by the electric pulse. Arrange to form a taxiway.

  According to such an embodiment, since the ginger region is formed by the electric field generated by the electric pulse, it is possible to form an electrical barrier against living organisms such as fish at the boundary of the ginger region. Can guide the fish in the ginger area, for example farmed fish, to be trapped in the ginger area, and prevent unintended enemies such as unintentional fish and other organisms from outside the ginger area from entering the ginger area Can do. At that time, unlike the sacrifice provided by the conventional net, it becomes possible to prevent the invasion of an external enemy regardless of the size of the external enemy.

  In addition, by forming an entrance / exit in the ginger region, fish can enter / exit from the ginger region to the taxiway and / or from the guideway to the ginger region via the entrance / exit.

  In addition, since a taxiway communicating with the ginger region is formed, a passage leading to the ginger region is formed, and by guiding the fish in this taxiway, the fish is allowed to enter the ginger region from the taxiway via the entrance / exit. Or from the ginger region through the entrance and exit and can be guided to a desired location through the guide path.

1 is a diagram schematically illustrating one embodiment of a fish farming system according to the present invention. It is a figure which illustrates the electric pulse applied to an electrode means. It is a figure for demonstrating the principle of the guidance method used with the culture system of this invention. It is a figure which illustrates one Embodiment of the arrangement | sequence of the electrode means 10 which forms the induction path 12c. It is a figure which shows another embodiment of the arrangement | sequence of the electrode means 10 in the induction path 12c. It is a figure which shows another another embodiment of the arrangement | sequence of the electrode means 10 in the induction path 12c. It is a figure which shows the example when one electrode means fails in embodiment of FIG. FIG. 3 is a diagram showing an embodiment of an electrode device 70. It is a figure which shows another embodiment of the electrode apparatus.

  FIG. 1 is a diagram schematically illustrating an embodiment of a fish farming system according to the present invention. FIG. 1 shows an example in which a fish culture system 1 is provided in the sea 2. The fish farming system 1 includes a plurality of electrode means 10 installed in water, and a control means (not shown) that controls an electric pulse applied to each electrode means 10. A fish is induced in the region 12 surrounded by the plurality of electrode means 10 by the electric field formed by the electric pulse.

  In FIG. 1, a plurality of electrode means 10 are arranged at intervals from each other on the outside and inside of a bay partitioned by dikes 14a and 14b. The region 12 surrounded by the plurality of electrode means 10 is formed with a ginger region 12a and a guide path 12c that communicates with the ginger region 12a via the entrance / exit 12b and extends from the ginger region 12a toward the port 16. . 1 shows an example in which the electrode means 10 is arranged along the outline of the above-described ginger region 12a, the entrance / exit 12b, and the guide path 12c. However, the electrode means 10 includes the ginger region, the entrance / exit And / or may be arranged in a matrix, for example, in a region that can serve as a guiding path. In such a case, an electric pulse is applied to the electrode means arranged at a position corresponding to the position where the ginger region, the entrance / exit and / or the guide path are to be formed, from the electrode means arranged in a matrix. Thus, a ginger region, an entrance / exit, and a guiding path can be formed in a desired region. For example, depending on various conditions such as season, water temperature, water flow, food distribution, etc., the position of the ginger area, doorway and taxiway can be changed, so that nomads graze sheep at that time. The fish can be guided to the most suitable area.

  In this way, an electric pulse is applied to the plurality of electrode means 10 arranged at intervals in the water to generate an electric field in the water, and the fish is induced by the generated electric field.

  When an electric field is generated in water by applying an electric pulse to the electrode means 10, electrical stimulation is given to the fish in the region where the electric field is generated. By adjusting the intensity, period, frequency, etc. of this electric pulse, it is possible to generate a type of stimulus that is particularly disliked by the target fish. In other words, an electric pulse that generates an electric field that gives an electrical stimulus that the fish dislikes is applied to the electrode means to create a region where the fish does not approach around the electrode means, thereby forming a barrier by the electric field.

  The strength of the electric field formed in water by applying an electric pulse to the electrode means 10 increases as the distance from the electrode means 10 decreases, and the electric field strength decreases as the distance increases. Furthermore, as the electric field strength increases, the intensity of electrical stimulation felt by the fish also increases. Therefore, when an electrical pulse is applied to a certain electrode means 10, the fish near the electrode means 10 receives a larger electrical stimulus. Therefore, when an electrical pulse is applied to a certain electrode means 10, the fish will naturally move away from the electrode means 10 in an attempt to escape in a weak direction of electrical stimulation, and the fish can be guided. .

  By appropriately selecting an electrode means to which an electric pulse is to be applied from among a plurality of electrode means, and appropriately selecting parameters of each electric pulse to be applied to each electrode means. The fish is guided by forming an area where a barrier / fish cannot enter due to an electric field having a desired width at a desired position.

FIG. 2 is a diagram illustrating an electric pulse applied to the electrode means. For example, an electric pulse as shown in FIG. 2 (a), (b) or (c) is applied to one of the adjacent electrode means 10. 2A shows an example of a square wave, and FIGS. 2B and 2C show an example of a sine wave. In each of FIGS. 2A to 2C, an electric pulse having a peak value A [V] or [A] is applied only during a period t [sec] within a period T [sec]. That is, the duty ratio in this case is D = t / T, and the frequency is 1 / T [Hz]. These parameters such as peak value, duty ratio, and frequency are adjusted to set the average voltage or average current of the electric pulse. By adjusting these parameters so that the electrical stimulation is suitable for the fish to be induced, and by adjusting the average voltage or average current according to the position of the electrode means 10 to which the electrical pulse is applied. Appropriate stimulation is given to the target organ of the target fish. FIG. 2C shows an example in which a sine wave in which the peak value A gradually decreases during the period t is applied. In FIG. 2C, the maximum peak value is shown as a representative value of the peak value A. Thus, the peak value A may change within the period t. Even if the peak value A is negative, the average voltage or average current is obtained from the average value of the effective values. Here, the frequency of intermittently applied electric pulses is referred to as period T, and the frequency of voltage / current applied within one electric pulse, that is, for example, the sign of FIGS. 2B and 2C. The frequency of the wave is called a frequency.
Further, the voltage / current value during the period T during which no electrical pulse is applied may be 0, or a DC or AC bias voltage / current may be applied. In addition, a weak DC / AC current / voltage component may be superposed.

  Note that the distance between the electrode means takes into account other external conditions such as the peak value that can be applied, the size of the fish to be guided, the geographical conditions of the bottom of the water, for example, the degree of obstacles to the traffic of ships, etc. Can be determined. The distance between the electrode means 10 may be, for example, a relatively long distance such as about 100 m or about 1 km, 50 cm to 10 m, 60 cm to 5 m, 70 cm to 3 m, 80 cm to 1 m, It may be a relatively short distance. Then, an average voltage or average current that provides a desired electric field strength is selected for a predetermined electrode means interval, and an electric pulse is applied to the electrode means.

  FIG. 3 is a diagram for explaining the principle of the guidance method used in the aquaculture system of the present invention. FIG. 3 shows an image of an electric field generated when an electric pulse is applied to the electrode means 10a to 10f arranged in a line at a predetermined interval d. In FIG. 3, six electrode means 10a to 10f are shown. However, the number of electrode means 10 is not limited to six. As shown in FIG. 1, as a whole, ginger regions 12a to guiding paths 12c are formed. Thus, a large number of electrode means 10 are arranged side by side.

  For example, according to the example of FIG. 3, in a certain period, an electric pulse is applied to the electrode means 10a, 10c, 10e (becomes a positive pole), and the adjacent electrode means 10b, 10d, 10f are set to 0 [V] (− Pole). In the next cycle, an electric pulse is applied to the electrode means 10b, 10d, and 10f, and the electrode means 10a, 10c, and 10e become 0 [V]. Thus, an electric pulse is applied between the adjacent electrode means 10. Here, the negative pole does not necessarily have a polarity different from 0 [V] or the positive pole side, and may be a potential at which some potential difference occurs between the negative pole side and the positive pole side.

  In FIG. 3, in such a case, the intensity of the electric field generated in each cycle is shown in the form of an equipotential line 30 around the electrode means 10a to 10f. In consideration of the visibility of the drawings, the equipotential lines 30 around the electrode means 10a to 10f represent only a range up to about half of the distance d between the electrode means. It may also extend to a range farther than this, or may extend to the next electrode means or to a range farther than that.

  In FIG. 3, the equipotential lines 30 are shown concentrically so as to surround each electrode means 10a to 10f. Therefore, the region where the electrode means 10a to 10f arranged in a row at a distance from each other is connected is covered by the concentric equipotential lines 30. An electric field generated by an electric pulse applied to each of the electrode means 10a to 10f is generated in a region covered by the equipotential lines 30, that is, an entire region where the electrode means 10a to 10f are arranged in a line. When fish 32 approaches or enters the area, it receives electrical stimulation. The electric pulses applied to the electrode means 10a to 10f are set so as to generate an electric field that gives an electrical stimulus that the fish 32 dislikes. Therefore, the fish 32 tends to move toward a direction where the electrical stimulation becomes weaker and a direction where the electrical stimulus is lost. Accordingly, the fish is guided away from the electrode means 10a to 10f, that is, toward the arrow 34a in FIG. Conversely, the closer to the electrode means 10a to 10f, the stronger the electric field and the stronger the electrical stimulation, so that the fish does not move in the direction approaching the electrode means 10a to 10f, that is, the arrow 34b in FIG. .

  In this way, an electric field barrier is formed and the fish cannot pass between the electrode means 10a to 10f.

  For example, as shown in FIG. 1, a plurality of electrode means 10 are arranged at intervals from each other along a substantially rectangular outline forming the ginger region 12 a, and the electrode means adjacent to these electrode means 10 When, for example, an electric pulse as shown in FIG. 2 is applied between 10, an electric field for applying electrical stimulation as shown in FIG. 3 is generated in water. In this way, a barrier is formed by an electric field that prevents fish from passing along the outline of the ginger region 12a, and the fish can be guided to be confined in the ginger region 12a.

Furthermore, any one or a plurality of electrode means, for example, the electrode means 10c and 10d, among the electrode means 10a to 10f shown in FIG. 3 are assigned to the entrance / exit 12b. The entrance / exit can be opened / closed by switching on / off electrical pulses to the electrode means 10c, 10d assigned to the entrance / exit 12b. For example, in FIG. 3, if the upper side of the electrode means 10a to 10f is the ginger region 12a and the lower side is the guide path side 12c, if an electric pulse is applied to the electrode means 10c, 10d assigned to the entrance 12b, the electrode means 10c, 10d An electric field is also formed at the position of, and an electrical stimulus is given to the fish trying to pass through this electric field, and the fish in the ginger region 12a is guided to be confined in the ginger region 12a, and the ginger region Fish outside 12a is locked out from the ginger region 12a.
When the application of the electric pulse to the electrode means 10c, 10d assigned to the entrance / exit 12b is stopped, an electric field is not formed at the position of the electrode means 10c, 10d, the entrance / exit 12b is opened, and the fish becomes the electrode means 10c. , 10d, it can pass through. Therefore, the fish goes back and forth between the ginger region 12a and the guide path 12c through the doorway 12b.
When it is desired to guide the fish from the ginger region 12a to the guide path 12c, the entrance / exit 12b is simply opened so that the fish in the ginger region 12a naturally notices the entrance / exit 12b and moves to the guide path 12c. Alternatively, a fish attracting means for attracting fish may be provided in the vicinity of the entrance 12b or in the guide path 12c. The fish attracting means may be a light attracting light (such as a light bulb, an LED, or a light emitting element such as a laser) that emits light that is preferred by the fish, or an electricity that the fish prefers. It may be an electrode means for generating a stimulus. For example, it is possible to attract the fish by applying electricity different from the above-described electric pulse to the electrode means 10. Depending on the type of fish, sound waves and ultrasonic waves can be used. This fish attracting means may be attached to the electrode device 10, or may be provided integrally, or may be provided separately from the electrode device 10.

FIG. 4 is a diagram illustrating an embodiment of the arrangement of the electrode means 10 forming the guide path 12c, and represents an image of an electric field generated when an electric pulse is applied to the electrode means 10g to 10l, for example. It is. In FIG. 4, the electrode means 10 g to 10 l arranged in a row at intervals are arranged in two rows with a substantially constant width w. Of the electrode means 10g to 10l, the same intensity electric pulse is applied to the electrode means 10g to 10k as in the electrode means 10a to 10f shown in FIG. Therefore, as described above, an electric field is formed so that the fish cannot pass through the rows formed by the electrode means 10g to 10k. Since such an electric field is formed around the electrode means 10g to 10k arranged through the width w, fish cannot come out from the region sandwiched between these two rows of electrode means 10g to 10k. The guide path 12c is formed. The fish moves in the guide path 12c mainly in the left-right direction in the figure. That is, the fish cannot go out from the guide path 12c nor enter the guide path 12c across the row of the electrode means 10g to 10l.
In FIG. 4, an electric pulse stronger than the electrode means 10g to 10k is applied to the rightmost electrode means 10l of the two rows of electrode means 10g to 10l, and a strong electric field is formed around the electrode means 10l. . The intensity of this strong electric pulse applied to the electrode means 10l is such that the stimulation by the electric field formed around the electrode means 10l is caused by the fish at any position across the width W direction between the at least two electrode means 10l, 10l. Is set to occur with sufficient strength to prevent it from passing. (Hereinafter, such electric field and electric pulse may be simply referred to as “strong electric field” and “strong electric pulse”.) Therefore, the induction formed between the rows of electrode means 10g to 10l. A barrier due to an electric field is generated at a position sandwiched between the electrode means 10l in the path 12c, and the fish passes through a region sandwiched between the electrode means 10l and 10l to which the strong electric pulse is applied in the guide path 12c. I can't do that. Accordingly, the fish cannot move in the direction of the arrow 42b in the guide path 12c, and is thus guided in the direction of the arrow 42a.
This strong electric pulse is applied to the electrode means 10l and 10l for a predetermined period, and then applied to the adjacent electrode means 10k and 10k. At this time, the electric pulse applied to the electrode means 10l and 10l may maintain the same intensity as the above-mentioned strong electric pulse, or can be weakened to the same intensity as the other electrode means 10g to 10j. Subsequently, after a predetermined period has passed, an electric pulse having the same intensity as the above-described strong electric pulse is applied to the adjacent electrode means 10j. In this way, a strong electric pulse is sequentially applied to the adjacent electrode means along the desired moving direction according to the speed at which the fish moves, and a barrier due to the electric field formed by this strong electric pulse is formed. Then, the fish is gradually moved toward the direction of guiding the fish in the guide path 12c. Then, the fish in the guiding path 12c is moved and guided in the direction of the arrow 42a in the figure in such a manner that it is gradually pushed from behind by the electric field barrier formed by this strong electric pulse. .
In addition to guiding the fish in the desired direction by preventing the fish from moving in the direction opposite to the desired direction by forming a barrier by a strong electric pulse in the guiding path 12c In the direction, that is, in the direction indicated by the arrow 42 a in FIG. 4, fish attracting means for attracting fish may be provided. As described above, various types of means can be used alone or in combination as the fish attracting means.
FIG. 5 shows another example of the arrangement of the electrode means 10 in the guide path 12c. FIG. 5A is a diagram showing the arrangement of the electrode means 10 in the guiding path 12c. FIG. 5B shows the intensity of the electric field generated near the center in the width direction of the guiding path 12c in FIG. FIG.
In the example of FIG. 5, as in the example shown in FIG. 4, two rows of electrode means 10g to 10l are provided substantially parallel to each other, and a guide path 12c is formed therebetween. Further, one row of electrode means 10′g to 10′l is provided between the two rows of electrode means 10g to 10l. In FIG. 5, an electric pulse is applied to one electrode means 10′k of the electrode means 10′g to 10′l in this central row, and an electric field is generated around it. Due to the electric field formed by the electrode means 10k, 10k and the central electrode means 10′k that form the outline of the guide path 12c, the position of the electrode means 10′k in the guide path 12c reaches the entire width of the guide path 12c. An electric field is generated, and a barrier due to the electric field is formed. Accordingly, the fish in the guiding path 12c cannot pass through the barrier due to the electric field, that is, can move in the guiding path 12c to the right of the electrode means 10′k, that is, in the direction of the arrow 52b. First, it is guided toward the arrow 52a.
FIG. 5B shows a change in electric field strength near the center in the width direction in the guide path 12c. The horizontal axis in FIG. 5B corresponds to the horizontal direction in FIG. 5A, and the vertical axis corresponds to the electric field strength. Curve 54 shows the strength of the electric field at each location.
The electrode means 10'g to 10'l in the center row are applied with the electrical pulses as described above to the electrode means 10'k, and in addition to the electrode means 10'k, especially for guiding fish. An electric pulse weaker than that of the electrode means 10′k may be applied to the electrode means 10′j adjacent to the direction in which it is intended. By this electric pulse, a weak electric field is formed around the electrode means 10′j. Therefore, as shown by the curve 54, the electric field in the vicinity of the center in the width direction of the guide path 12c shows a low value (for example, it may be 0) from the electrode means 10′g to 10′j. As the electrode means 10′i approaches the electrode means 10′j, it gradually begins to rise, becomes the highest at the position of the electrode means 10′k, and begins to fall as it moves away from the electrode means 10′k. Then, when the fish on the left side of the electrode means 10′k in the guide path 12c in FIG. 5, for example, the fish in the vicinity of the electrode means 10′i moves to the right side in the figure, the electric field gradually increases. The strength of the electrical stimulation received also becomes stronger. Therefore, the fish itself moves in the direction in which the stimulation by the electric field is weakened, that is, in the direction of the arrow 52a. Therefore, before approaching the electrode means 10′k, the fish in the guide path 12c starts to move in a direction where the electric stimulation due to the electric field is weaker when approaching the electrode means 10′j.
In this way, when a weak electric pulse is applied gradually in the direction in which the fish is to be guided, the electrical stimulation becomes stronger as the fish advances in the direction that the fish does not want to travel. Since it starts to move naturally, fish can be guided more smoothly.
Further, as in the example described with reference to FIG. 4, after an electric pulse is applied to the electrode means 10′k for a predetermined period, the next electrode means, more specifically, the next in the direction in which the fish is to be guided. An electric pulse similar to the electric pulse applied to the electrode means 10′k is applied to the electrode means 10′j. At that time, the weak electric pulse applied to the electrode means 10′j is further applied to the electrode means 10′j adjacent thereto. In this way, depending on the speed at which the fish moves, the electric pulse and the weak electric pulse are sequentially applied to the adjacent electrode means in the desired direction, thereby depending on the electric field formed by these electric pulses. The barrier is gradually moved toward the direction in which the fish is to be guided in the guide path 12c to guide the fish.
In this way, according to the embodiment in which further electrode means 10′g to 10′l are provided in the guide path 12c, an electrical barrier is formed in the guide path 12c, and the fish is guided, the example of FIG. In comparison, more electrode means are required for one line in the guiding path 12c, but it is not necessary to apply a strong electric pulse to form an electrical barrier as in the example of FIG.
When an electric pulse is applied to the electrode means 10 in water, for example, when applied in seawater, the electrode means 10 may cause elution of the material of the electrode means due to the effect of ion conduction, corrosion due to oxidation, Damage may be unavoidable due to accumulation of kimono. When the intensity of the electric pulse is increased, that is, when the voltage value / current value of the applied electric pulse is increased, such damage may be increased. In such a case, according to the example shown in FIG. 5, since it is not necessary to apply a stronger electric pulse, the degree of damage caused to each electrode means 10 can be kept low.
FIG. 6 shows still another example of the arrangement of the electrode means 10 in the guide path 12c. In the example of FIG. 6, two rows of electrode means 10m to 10s are arranged in a zigzag shape. That is, in the guiding path 12c, the electrode means 10m, 10o, 10q, 10s arranged on the inner side and the electrode means 10n, 10p, 10r arranged on the outer side are alternately arranged to form two rows. doing.
In FIG. 6, as in the example of FIG. 4, an electric pulse having the same intensity is applied to the electrode means 10m to 10r among these electrode means 10m to 10s, and the rightmost electrode means 10s in FIG. A strong electrical pulse is applied. Thereafter, this strong electric pulse is sequentially applied to the adjacent electrode means at predetermined time intervals.
Thus, when the electrode means 10m to 10s are arranged in a zigzag shape, for example, as shown in FIG. 7, one electrode means 10o cannot form a predetermined electric field due to a failure or the like. Even in such a case, it can be ensured by the electrode means 10n and 10p adjacent to both sides. This is because when the electrode means are arranged in a zigzag shape, the distance in the longitudinal direction of the guide path 12c, that is, the direction along the contour of the guide path 12c, is shorter than the distance between the adjacent electrode means. That is, for example, when one electrode means 10o is missing in the form shown in FIG. 6, the distance between the remaining adjacent electrode means 10n and 10p is 1 in the form illustrated in FIGS. When one electrode means is missing, it becomes shorter than the distance between the adjacent electrode means remaining. Therefore, the remaining electrode means 10n, 10p can cover the electric field of the portion lacking due to a failure or the like and form the electric field so as to cover the outline of the guiding path 12c.
FIG. 8 is a diagram showing an embodiment of an electrode device 70 including electrode means used in the present invention. FIG. 8A shows a process of installing the electrode device 70 at a predetermined position in water. FIG. 8B shows the electrode device 70 in which the electrode means 10 to which an electric pulse is applied and the electrode means. Fixing means 74 for fixing at a desired installation position in water, and an electric field is formed in water when an electric pulse is applied.

  The electrode means 10 includes a linear portion 72a having a conductive and corrosion-resistant surface that extends at least partially from the water bottom toward the water surface, and the fixing means 74 is provided at the lower end of the linear portion 72a. At the upper end of the linear portion 72 a, a float 76 that supports the linear portion 72 a with the fixing means 74 is provided.

  FIG. 8A schematically shows the inside of the float 76. The float 76 is a substantially spherical shell having a space filled with air, and is configured to float on the water surface. Before the electrode device 70 is installed at a predetermined position, the linear portion 72a is stored inside the float 76 in a wound state, and when the float 76 reaches the fixing means 74, The linear part 72a is unwound.

  A connecting portion 78 that removably connects the linear portion 72a and the fixing means 74 is provided at the lower end of the linear portion 72a of the electrode device 70.

When the linear portion 72a is unwound, the connecting portion 78 provided at the lower end of the linear portion 72a approaches the fixing means 74 disposed on the bottom of the water. When the connecting portion 78 reaches the depth of the fixing means 74 provided at the bottom of the water, it is connected to the fixing means 74 and the electrode means 10 is fixed at a predetermined position.
For example, the upper surface of the fixing means 74 and the lower surface of the connecting portion 78 may be provided with screwing portions that are screwed with each other, or magnets and metals that are attracted to each other may be provided. At that time, if an electromagnet is used as the magnet, the connecting portion 78 can be detachably attached to the fixing means 74 by turning on and off the current flowing through the coil.

  The linear portion 72a is supported between the float 76 and the fixing means 74 in a state of being stretched linearly.

  A flexible braided wire pipe or a wire can be applied to the linear portion 72a. As the braided wire pipe or wire, a braided wire made of stainless steel is used. Further, in place of or in addition to a wire made of stainless steel, a wire made of other conductive inorganic materials such as platinum, iridium, ruthenium, rhodium, titanium, copper, chromium, and / or an alloy containing these is knitted. You may use it. In addition, a conductive polymer material made of polyacetylene, polypyrrole, polythiophene, polyaniline, or the like, or a composite material in which an inorganic and / or organic (for example, carbon) conductive material is added to the polymer material can be applied. . Furthermore, you may combine the wire which consists of synthetic resins. By appropriately combining these strands and selecting the ratio thereof, the predetermined conductivity, corrosion resistance, flexibility and / or stretchability of the linear portion 72a can be ensured.

  Further, the braided wire pipe or wire may be provided with a corrosion-resistant coating or plating. In the corrosion-resistant coating, the braided wire or pipe may be coated as a whole, or the strand may be coated.

  The fixing means 74 may have a weight capable of fixing the electrode means 10 in water, or may have a fixing portion 74a fixed to the water bottom. If the fixing portion 74a is provided, the fixing means 10 can be more firmly fixed to the water bottom. On the other hand, if the fixing means 74 has a weight capable of fixing the electrode means 10 in water, it is not necessary to perform a work for fixing the fixing means 74 to the bottom of the water, and the fixing means 10 can be installed on the bottom of the water more easily. Can do.

  Furthermore, the electrode device 70 may be provided with a battery module BM. FIG. 8B shows an example in which a solar cell module is attached to the upper hemisphere of the float 76 as the battery module BM. In addition to the solar battery module, various battery power generation modules such as a seawater battery module, a wind power generation module, and a tidal power generation module can be applied to the battery module BM. The battery module may include a storage battery in addition to these power generation modules.

  These power generation modules BM may be provided in each electrode device 70, and for example, one battery module BM may be provided for one pair or several electrode devices 70. If the power generation module BM can stably supply all the power used by the electrode means 10, the electrode device 70 including the power generation module BM need not be provided with a power supply cable. Therefore, the trouble of laying a cable for connecting the plurality of electrode means 10 to each other and the power source can be saved. Further, if one power generation module BM is provided for one pair or several electrode devices 70, only a few electrode means 70 corresponding to one power generation module BM need to be connected by wire. . Furthermore, after providing a cable for supplying power to each electrode device 70, the power generation module BM can be used as a backup power source in case of an emergency or failure of the power supply facility.

Further, the electrode device 70 is provided with a communication module CM that communicates with a control unit that controls an electric pulse. FIG. 8B shows an example in which a wireless communication module CM is provided inside the float 76. Through this wireless communication module CM, the electrode device 70 receives a signal for determining an electric pulse to be applied to the electrode means 10 from the control means. In addition, position information of the electrode device 70, information indicating a state of damage or corrosion of the electrode unit 10, information regarding a state of connection with the fixing unit 74, and the like are transmitted to the control unit. The position information of the electrode device 70 can be acquired by GPS or the like, or can be relatively more precisely obtained based on the positional relationship with the peripheral electrode device 70.

  Furthermore, the position of the moving body that moves in and near the area where the plurality of electrode means 10 are provided can be determined in detail based on the mutual positional relationship with each electrode means 10.

  FIG. 9 is a diagram illustrating another embodiment of the electrode device 70. In FIG. 9, the linear part 72a is directly provided as the electrode means 10 on the upper surface of the fixing means 74 provided in the water bottom. The linear portion 72a is also formed from a braided wire pipe. One electrode device 70 is provided with a battery module BM, and is connected to the other electrode device 70 via a cable 82.

  When a fish is guided using the electrode device of the present invention, first, the electrode means 10 is arranged so as to form a ginger region 12a and a guide path 12c that communicates with the ginger region 12a via the entrance / exit 12b. Then, an electric pulse is applied to the electrode means 10.

  When throwing young fish or fry of fish to be cultivated into the ginger region 12a, throw these fish into the guideway 12c from one end provided on the port side of the guideway 12c, An electric pulse is controlled and applied to the electrode means 10 by the control means as follows. That is, the electric pulse is set and applied so that an electric field is generated so that the fish is guided in the guide path 12c toward the ginger region 12a. When the fish that has passed through the guide path 12c enters the ginger region 12a, the control means does not apply an electrical pulse to the electrode means 10 of the entrance 12b, and the entrance 12b is opened. When substantially all of the fish in the guide path 12c enters the ginger region 12a, the control means applies an electric pulse to the electrode means 10 of the entrance 12b to close the entrance 12b.

  Whether the fish in the taxiway 12c has entered the ginger region 12a is detected by detecting the number of fish remaining in the taxiway 12c, the number of fish having passed through the entrance 12b, and / or the number of fish having entered the ginger region 12a, A determination can be made based on this. In order to detect the number of these fishes, a known fish finder, an optical detector, or the like may be used. An electric field is formed through the electrode means of the present invention, and the current flowing therethrough , And by analyzing the current value together with the position information of the electrode means, it may be determined how much fish is in which position in the electric field.

  When fish enters the ginger region 12a, the fish is raised and grown in the ginger region 12a for a predetermined period. In the meantime, for example, food of cultured fish bred in the ginger region 12a, such as small fish, can be sent from the port side to the ginger region 12a side via the guide path 12c.

  Further, the ginger region 12a is further divided into two or more sections, and depending on the underwater environment, for example, depending on the tide fullness and flow, the change in water temperature due to weather, the state of food distribution, etc. Can be guided to the compartment. At that time, the fish may be guided to a desired section in combination with the above-described fish collecting means.

  When the cultured fish has grown to a state suitable for shipping, the cultured fish can be guided from the ginger region 12a to the vicinity of the port via the guide path 12c.

  Furthermore, the aquaculture system 1 may include various sensors that detect the water temperature, the air temperature, the speed of the water flow, the density of the food, the growth status of the cultured fish, and the like. The control means can determine what electric pulse is applied to which electrode means 10 based on the detection values from these sensors. Further, the control means may be programmed in advance so as to apply a predetermined electric pulse to the predetermined electrode means 10 at a predetermined date and time. At that time, for example, individual threshold values are set for the detection values by the above-mentioned various sensors, or complex conditions are set, and what electric pulse is applied to which electrode means 10 is a pre-patterned table. And an electric pulse may be applied to each electrode means according to the table. Further, a plurality of these threshold values and tables are stored according to the type of the cultured fish, and can be read and used as appropriate according to the type of the current cultured fish.

  Note that the present invention is not construed as being limited to the above-described embodiments, and may be carried out in various modes without departing from the spirit of the present invention. For example, although referred to as “fish” in the above embodiment, the scope of the present invention is not necessarily limited to biological fish, but mammals such as whales, dolphins, fur seals, sea lions, reptiles such as crocodiles, and frogs. It is applicable to all living organisms that live in water such as amphibians such as jellyfish, squid, octopus, shrimp, and algae. In addition, when trying to cultivate organisms that do not move so freely, such as shellfish and cormorants, as a protective fence to keep away living organisms that prey on these and organisms that are harmful to them It is also possible to apply the present invention.

  Moreover, the electrode means or the electrode device may have a light emitter such as a light, such as a so-called lamp buoy, on the upper part thereof. If such a light emitter can change color, brightness, etc., the state of the electric pulse applied to each electrode means can be visually recognized from the outside by the display mode / light emission mode of the light emitter. Then, the use state of the above-mentioned ginger region, doorway and / or taxiway, for example, in which range the ginger region is used, whether the doorway is closed, or in which direction the fish is guided It can be confirmed at a glance on the spot. Further, each electrode means or electrode device has a self-diagnosis function, and the display mode / light emission mode of the illuminant is determined according to its own state, for example, the degree of deterioration of the electrode means, the presence or absence of a failure, the type of failure, May be different. In addition, as described above, when the electrode means / electrode device are arranged in a matrix, the light emission mode of the light emitter is changed regardless of the state of the electrode means, and the outside, particularly the upper part, for example, You may display some message with respect to the person of the sky, for example, an advertisement.

A further embodiment of the present invention will be described with reference to FIG.
In the water tank 100, a large number of columnar electrodes 110 are provided in a state of being arranged in a matrix so as to be substantially parallel to each other. The electrode 110 may be, for example, a cylindrical or cylindrical columnar body, may have a prismatic shape such as a quadrangular column, and is a thinner wire-shaped linear body as illustrated. Also good.

Positioning members 120 and 120 for supporting and positioning these electrodes 110 from both ends are provided on the upper and lower portions of the electrodes 110, respectively.
As one embodiment, a case where the electrode 110 has a thickness that can stand by itself and is relatively thick will be described.

  Each positioning member 120 has an insulating plate 124 provided with a large number of fitting portions 122 having a contour shape corresponding to the cross-sectional contour of the end portion of the electrode 110.

  The electrode 110 is positioned and fixed at least in the lateral direction in the water tank 100 by fitting the end portion of the electrode 110 into the fitting portion 122 of the positioning member 120, 120 provided on each of the upper portion and the lower portion of the electrode 110. The

  These insertion portions 122 may be formed so as to penetrate the plate 124 or may be formed as recesses that do not penetrate.

  The plate 124 and each electrode 110 may be fixedly fixed in advance, or may be configured in an assembly type that is installed while being assembled in the water tank 100. In the case of the assembly type, first, the lower plate 124 is installed, then the upper plate 124 is installed, and then the electrode 110 is inserted into the through-hole-like fitting portion 122 of the upper plate 124 and inserted downward. Alternatively, the electrode 110 may be positioned in the water tank by inserting the tip of the electrode 110 into the fitting portion 122 of the lower plate 124.

  A fixing member for fixing the upper or lower plate 124 may be provided inside the water tank 100, or a fixing member for fixing the inner surface of the water tank 100 is provided outside the plate 124. It may be. For example, in the case of a fixing member on the water tank side, it is a mounting table that bulges inward from the wall surface of the water tank, and the plate 124 is placed in the water tank by mounting the outer peripheral end of the plate 124 thereon. It can be positioned at 100 predetermined positions. In addition or alternatively, it may be a protrusion provided to protrude outside the plate 124.

  In addition, a spacer member that separates the upper and lower plates 124 at a predetermined interval and fixes them together may be provided.

  Further, only the lower plate 124 is fixed at a predetermined position in the vicinity of the bottom in the water tank, and the upper plate is in the vicinity of the water surface in the water tank in a state of being guided through an electrode inserted through the fitting portion 122 of the upper plate, for example It may be configured to be able to move along the top and bottom of the water surface. At this time, the upper plate may be configured to be able to receive a desired buoyancy from the water in the water tank by adjusting the density, for example, by being formed of a hollow or foamed material.

  As another embodiment, as shown in FIG. 10, an example in which the electrode 110 is formed as a relatively thin linear member such as a wire will be described.

  This embodiment is different from the previous embodiment mainly in the fixing method of the plate 124 and the electrode 110. The points common / corresponding to the other embodiments can be applied as they are / correspondingly.

  In this case, the electrode 110 can be fixedly fixed in a state in which the end portion is embedded in each insertion portion 122 of the upper plate 124 and / or the lower plate 124.

  For example, the lower end of the electrode 110 is positioned in a state where the lower end of the electrode 110 is embedded and fixed in the insertion portion 122 of the lower plate 124, and the upper end of the electrode 110 is inserted and positioned in the insertion portion 122 of the upper plate 124. Also good.

  The outer contour of the plate 124 may be formed so as to substantially match the shape of the inner contour of the water tank 100 with a predetermined clearance, and has an arbitrary shape such as a polygon or a circle. May be. It is only necessary to have at least an outer contour smaller than the inner contour of the water tank 100 to be used.

  The wiring for supplying the electric pulse to each electrode 110 may be assembled to the plate 124 or each electrode 110, and the connection portion provided at the end of each electrode 110, preferably on the upper side, is waterproof. It may be removably attached and connected via a connector, or may be fixedly connected by soldering or the like and waterproofed. Alternatively, they may be connected in a non-contact manner such as inductive connection.

  The electric pulse applied to each electrode 110 is the same as in the above-described embodiment. For example, in various voltage ranges such as several V to several kV, several V to several hundred V, 5 V to 50 V, 10 V to 30 V, several Hz to several GHz, several Hz to several MHz, 10 Hz to 100 kHz, 100 Hz to 10 KHz, By sequentially applying electric pulses in various frequency ranges such as 1 k to 10 kHz to the respective electrodes, the fish in the aquarium can be guided in a desired direction.

  By applying an electric pulse using such an electrode device, the fish in the aquarium can be guided in a desired direction. The water put into the aquarium may be seawater or fresh water. Such an electrode device is applied to any water tank for business use or personal use, such as ornamental use, amusement use, aquaculture use, and storage.

  For example, it can be set in advance and guided to move the fish in a predetermined direction at a predetermined time. Further, in combination with a human sensor or the like, fish can be guided according to the movement of a person outside the aquarium. In addition, an illumination device such as an illumination is installed in and / or outside of the aquarium, and the lighting device is turned on and off in conjunction with the direction of guiding the fish, thereby guiding the fish while exerting a production effect on the viewer. can do.

  For example, in an aquarium or other ornamental aquarium, the position of the person watching the fish outside the aquarium, for example, whether the person is looking inside the aquarium from the side of the aquarium or from the top or bottom , The fish can be guided to a position that is easy for humans to see. In addition, when different types of fish are placed in the same aquarium, it is possible to determine and guide the location of each type of fish so that different types of fish are not mixed. By doing so, it is possible to divide the space that can move freely for the fish in the aquarium without dividing the space itself, so water quality management etc. should be unified in the aquarium The environment in the aquarium can be managed efficiently.

Moreover, when it is desired to perform an arbitrary operation such as cleaning the water tank, the fish can be guided to a predetermined area in advance, and the operation can be performed in an area where there is no fish. At that time, after guiding the fish using the apparatus or method according to the present invention, the water is physically blocked by another means between the area where the fish is guided and the other area, and only one area is It may be possible to drain from.
By having such a configuration, it is possible to guide the fish without touching the fish with a duck or net.

1 is a diagram schematically illustrating one embodiment of a fish farming system according to the present invention. It is a figure which illustrates the electric pulse applied to an electrode means. It is a figure for demonstrating the principle of the guidance method used with the culture system of this invention. It is a figure which illustrates one Embodiment of the arrangement | sequence of the electrode means 10 which forms the induction path 12c. It is a figure which shows another embodiment of the arrangement | sequence of the electrode means 10 in the induction path 12c. It is a figure which shows another another embodiment of the arrangement | sequence of the electrode means 10 in the induction path 12c. It is a figure which shows the example when one electrode means fails in embodiment of FIG. FIG. 3 is a diagram showing an embodiment of an electrode device 70. It is a figure which shows another embodiment of the electrode apparatus. FIG. 6 shows a further embodiment of the present invention.

Claims (14)

  An electrode having an electrode means to which an electric pulse is applied and a fixing means for fixing the electrode means in water, and forming an electric field in water for inducing fish when the electric pulse is applied. apparatus.   The electrode apparatus according to claim 1, wherein the electrode means includes a linear portion having at least a partially conductive and corrosion-resistant surface.   The electrode device according to claim 2, wherein the linear portion includes a flexible pipe or a wire.   4. The electrode device according to claim 2, wherein the linear portion is supported on the upper side by support means and on the lower side by fixing means. 5.   The electrode device according to claim 4, wherein the support means includes a float.   The electrode device according to claim 4 or 5, wherein the fixing means has a weight capable of fixing the electrode means in water.   The electrode device according to claim 4 or 6, wherein the fixing means has a fixing portion fixed to the bottom of the water.   The electrode device according to any one of claims 4 to 7, wherein the electrode device has a connecting portion that detachably connects the electrode means and the fixing means.   The electrode device according to claim 1, wherein the electrode device is provided with a battery module.   The electrode device according to claim 1, wherein the electrode device is provided with a communication module that communicates with a control unit that controls the electric pulse.   A fish culture system using the electrode device according to any one of claims 1 to 10.   A fish guidance method using the electrode device according to claim 1.   Positioning means for arranging a plurality of the electrode means in a water tank, the positioning means comprising a plate-like member, and the plate-like member is provided with a positioning hole into which an end of each electrode means can be inserted 5. The electrode device according to claim 1, further comprising positioning means. The positioning means is arranged at the upper end and / or the lower end of the electrode means,
The electrode means according to claim 4, wherein the supporting means and / or the fixing means and the positioning means are integrally formed.